Bio Spec



Bio Spec Overview

Ignite Creation Date: 2025-12-25 @ 2:42 AM
Last Modification Date: 2025-12-25 @ 2:42 AM
Retention: SAMPLES_WITH_DNA
Description: Types of Specimens:

Formalin-fixed, paraffin-embedded (FFPE) tumor tissue obtained from surgical resection.

Peripheral blood samples for germline DNA extraction.

Time of Collection:

Tumor tissue will be collected intraoperatively.

Blood samples will be collected postoperatively at the time of referral for genetic testing.

Purpose of Analysis:

Tumor tissue will undergo IHC for MMR protein expression.

Based on IHC results, additional analyses may include BRAF mutation and MLH1 promoter methylation.

Blood-derived germline DNA will be analyzed via next-generation sequencing (NGS) to detect pathogenic variants associated with Lynch syndrome.

Storage and Handling:

FFPE blocks will be stored in hospital pathology units.

Blood samples for DNA extraction will be processed and stored according to standard protocols in certified genetic laboratories.

Location:

Specimens will be collected from multiple surgical centers across Türkiye.
Section: Types of Specimens: Formalin-fixed, paraffin-embedded (FFPE) tumor tissue obtained from surgical resection. Peripheral blood samples for germline DNA extraction. Time of Collection: Tumor tissue will be collected intraoperatively. Blood samples will be collected postoperatively at the time of referral for genetic testing. Purpose of Analysis: Tumor tissue will undergo IHC for MMR protein expression. Based on IHC results, additional analyses may include BRAF mutation and MLH1 promoter methylation. Blood-derived germline DNA will be analyzed via next-generation sequencing (NGS) to detect pathogenic variants associated with Lynch syndrome. Storage and Handling: FFPE blocks will be stored in hospital pathology units. Blood samples for DNA extraction will be processed and stored according to standard protocols in certified genetic laboratories. Location: Specimens will be collected from multiple surgical centers across Türkiye.